Furniture



(No Modei.) Z'Sheets-Sheet L C. BOSTAD 8: 0. 0. KRABOL.

REVULVING FURNITURE.

Patented Mar. 24, 1896.

M4 mam IGRANAM.PHUTO'UDIODWASNWGTUNJD (No Model.) 2 sheets Sheet 2 G.BOSTAD & 0. O. KRAB OL.

REVOLVING FURNITURE.

Ewan Z5715 catmfl 4174.7

Q/M '0. 44M 44 214 UNITED STATES PATENT Orricn.

CHRISTIAN BOSTAD AND OLAUS O. KRABOL, OF CHICAGO, ILLINOIS, ASSIGN- ORSTO THE AUTOMATIC FOLDING BED COMPANY, OF SAME PLACE.

REVOLVING FURNITURE.

SPECIFICATION forming part of Letters Patent N 0. 556,732, dated March24, 1896.

Application fil d February 1, 1894. Serial No. 498,728. (No model.)-

To all whom it may concern.-

Be it known that we, CHRISTIAN Bosrno and OLAUS O. KRABOL, citizens ofthe United States, residing at Chicago, in the county of Cook-and Stateof Illinois, have invented certain new and useful Improvements inRevolving Furniture; and we do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

Our invention relates to revoluble furniture. Its object is to providemeans for easily turning heavy furniture, such as folding beds, which iscarried upon a base or platform and designed to turn thereon while thebase stands adjacent to a wall.

The invention consists in the use of a swingin g frame, upon which thearticle of furniture is pivotally supported and which is pivoted to thebase so as to swing forwardly.

2 5 It consists, further, in the use of a slide unconnected with theframe and adapted to be drawn out to supply a track therefor, and soconstructed that the frame does not bear upon it when the article is inits normal position.

It consists of such further parts and arran gement of parts as arehereinafter described.

In the drawings, Figure l is a plan view of the base and thecarrying-frame. Fig. 2 is a longitudinal section on the line 2 2 ofFig. 1. Fig. 3 is a detail of the carrying-frame. Fig. i is a plan viewof the base with the frame removed. Fig. 5 is a plan view of the slide.

0 Fig. (3 is a plan view of the frame. Fig. 7 is a bottom plan, upon asmaller scale, of the article of furniture to be carried by the base.

It is common to construct folding beds in combination with bookcases andother articles 4 5 offurniturc, the two pieces facing in oppositedirections. In the daytime the entire piece stands with the bed towardthe wall. At night it is turned around, so that the bed may be lowered.Such furniture is too heavy to be easily turned upon the floor by meansof casters. Furthermore, to so turn it is very detrimental to carpets orthe floor. Such furniture has been pivotally mounted upon a base whichremains stationary while the article is turned, a sliding carriagecarrying the 5 5 pivot-pin and sliding forward to allow the article toturn without striking the wall. \Vhen this sliding carriage rests uponthe fioor, it is opento the same objection of damaging the carpets, &c.,as is the use of casters upon which to rotate the piece of furniture.hen

it runs in ways in the base, the friction is great and there is dangerof cramping the slide inits ways. All of these difficulties are overcomein our invention. The article turns 6 5 easilyand freely and withoutdanger to itself or thefloor-cm ering.

As the invention relates only to the means of supporting and turning thefurniture, we have not deemed it necessary to show the entire structure.

The article of furniture to be carried is indicated at A, its bottombeing shown at E. The base upon which the piece rests is shown at B, andis an oblong rectangular plat-form having its upper surface recessed and grooved, as hereinafter described.

The frame C, for carrying the article, is preferably of cast-iron, and,as shown, is substantially of wheel form, with one side flat- 8o tened.It is provided with an arm 0, projecting from its periphery and by meansof which it is pivotally secured to the platform B, as shown ate, arecess 1) being formed in the platform to accommodate this arm and allow8 5 it to swing on its pivot-pin. The frame C is supported upon rollersX Y Z, the first being opposite the stem 0 and the others interme diateof the roller X and the stem and upon opposite sides of the frame. Theserollers are so journaled as to travel in the directions of the movementsof the frame as it swings upon the pivot c.

The pivot to of the article A is fixed in the center of the frame C andprojects upwardly. Rollers G G (as shown four in number) are journaledin the frame C at intervals around its periphery, so as to turn in thedirection of its circumference. These rollers project upwardly and serveas bearings for the bottom of the article A, which is armed with acircular metallic track a for contact with them. At e is shown thesocket in the bottom E of the article A to receive the pivot-pin a.

IOO

The top of the platform B is recessed to recated very near it.

p G G project above the upper surface of the platform, admitting of thearticle A being lo- Across the floor of this recessed portion andextending diagonally back from the front of the platform are ways forthe slide D, which is adapted to be drawn out to carry the frame 0 whenit is swung forwardly. This slide is composed of two boards (I d of suchthickness that they are flush with the floor of the recessed portion ofthe platform.

A cleat attached to the forward ends of the boards d d, as shown, holdsthem together and serves as a means of attachment for the pull D, bywhich the slide is moved in its rollers X Y Z to run upon, the tracks x.2 be:

ing in part upon the floor of the platform and l in part upon the slideD, the two portions of each being so disposed that they coincide whenthe slideis drawn forward. The diagonal adjustment of the sliderelatively to the platform B is necessary to admit of the inner,

ends of the tracks 50 y .2 being upon the floor of the platform, theinclination of the ways for the slide from front to rear being towardthe pivotal point of the frame C.

The track 1 is wholly upon the rib Z) of the platform between the waysfor the boards (Z d, which being diagonal to the platform follow thegeneral direction of this track.

Guide-channels b b are cut in the platform B, extending one from eachend thereof and located midway between the sides. A pin f is set in thebottom of the article A near one of its ends and midway of its sides andengages the channels b 6 \Vhen it is desired to turn the article theslide 1) is first drawn forward by means of the pull 1), and pressure isthen applied at the end opposite that at which the pin f is located, soas to force it forward. turns upon the pin f as a pivot, carrying theframe 0 with it. The frame 0 swings upon its pivot c, and hence carriesthe pivot-pin a and necessarily the article A in a longitudinal as wellas a lateral direction with reference to the platform, and the pin fslides along the groove U. reaches the limit of its forward movement thefurther turning of the article A must be and terminating at the grooveor channel I)? The platform B forward of this curved line The article\Vhen the frame 0:

forward side of the channel I) it is stopped and further movement of thearticle A must be upon it as a pivot, the frame 0 being carriedbackwardly, and thereby forcing the article lon 'itudinall so as to carrthe in along I the channel 0 The next action in turning the article isof course in the opposite direction.

The frame 0 is round for convenience of construction. Its rearward sideis flattened,

as shown, to admit of the recess withinwhich it is. set terminating atthe curve already described and serving as a guide for the p1n j.

The function of this guide is simply to provent the frame 0 from beingmoved inwardly too soon and thus throwin g the article A against thewall.

Were the. article A to rest upon the slide D when in itsadjustedposition it would be exceedingly difficult to move the slidebecause of the great weight of the article.

One advantage in the use'of the frame C swinging about a fixed point isthe positive action of the mechanism.

WVe claim as our invention I l. The combination with an article offurniture, A, adapted to be rotated upon a pivot, of a platform, 13,having longitudinal guideways, b U adjacent to its ends; a frame, C,pivoted upon the platform in such manner as to swing forwardly; apivot-pin, a, for the article, A, carried by such frame, and a guidepinset in the bottom of the article, A, for engaging the guideways, b bsubstantially as described.

2. The combination with an article of furniture, A, adapted to berotated upon a pivot, of a platform, 13, having longitudinal guideways,Z2 11 near its ends; a frame, 0, pivoted at one side to the platform;rollers for supporting the frame; a slide located below i andunconnected with the frame and being extensible with reference to theplatform; a guide-pin set in the bottom of the article, A, for engagingthe ways, b b and a pivot-pin for the article, A, carried by the frame,C, substantially as described and for the purpose specified.

The combination with a rotatable article of furniture, A, and withaplatform, B, therefor and a frame, 0, pivoted upon the plat- IOO Alying normally within the area of the base and adapted to be extendedbeyond such area to increase the Width of the base and support theplatform or article as it turns, snbstantially as described.

In testimony whereof W6 affix onr signatures in presence of twoWitnesses.

CHRISTIAN BOSTAD. OLAUS O. KRABOL. 'Witnesses LoUIs K. GILLSQN, M. H. L.WING.

